Home / 1,079,836.95-1,490,340.56-666,614.37

Finding the Fourth Proportional to 1,079,836.95, 1,490,340.56 and 666,614.37

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Solution

The fourth proportional to 1,079,836.95, 1,490,340.56 and 666,614.37 is: 920,030.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079,836.95 : 1,490,340.56 = 666,614.37 : x
  2. Step 2: Convert to fraction form
    1,079,836.95/1,490,340.56 = 666,614.37/x
  3. Step 3: Cross multiply
    1,079,836.95x = 1,490,340.56 × 666,614.37
  4. Step 4: Simplify right side
    1,079,836.95x = 993,482,430,156.78
  5. Step 5: Solve for x
    x = 993,482,430,156.78/1,079,836.95
  6. Step 6: Final answer
    x = 920,030.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.